[PATCH 0/2] mailbox: imx: support new tx doorbell

Peng Fan peng.fan at nxp.com
Wed Oct 11 16:32:07 PDT 2023


Hi Jassi,

> Subject: [PATCH 0/2] mailbox: imx: support new tx doorbell

Would you pick up this patchset? Or any comments?

Thanks,
Peng.

> 
> The new added channel type is for i.MX95 SCMI mailbox usage.
> 
> i.MX95 using TX doorbell and RX doorbell for the SCMI mailbox transport.
> For TX doorbell, we relies on software reply from the other side in SCMI driver
> side using mbox_client_txdone to drive the tx tick.
> 
> But the current MU tx doorbell using tasklet to emulate hardware ACK from
> mailbox driver side, so add a new doorbell type to support i.MX95 SCMI
> mailbox transport.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
> Peng Fan (2):
>       dt-bindings: mailbox: fsl,mu: add new tx doorbell channel
>       mailbox: imx: support channel type tx doorbell v2
> 
>  .../devicetree/bindings/mailbox/fsl,mu.yaml        |  5 ++--
>  drivers/mailbox/imx-mailbox.c                      | 32 ++++++++++++++++++++--
>  2 files changed, 32 insertions(+), 5 deletions(-)
> ---
> base-commit: e143016b56ecb0fcda5bb6026b0a25fe55274f56
> change-id: 20230916-imx95-mbox-88437c51ce54
> 
> Best regards,
> --
> Peng Fan <peng.fan at nxp.com>



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